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PostPosted: Tue Jan 11, 2011 2:52 pm 
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Joined: Wed May 28, 2008 7:04 pm
Posts: 263
Location: Yubico base camp in Sweden - Now in Palo Alto
An issue with the configuration COM API has been resolved where OATH-HOTP configurations with Yubikey 2.2 caused unexpected HOTPs to be generated. No problems with pre-2.2 keys.

From firmware version 2.2, the moving factor seed value can be set to an arbitrary value. The previous version of the configuration tool seeded this value with garbage/uninitialized data and as this field was not used prior to version 2.2, this issue was not noticed.

An updated version of the COM API has been uploaded to our web at http://www.yubico.com/personalization-tool


We were also asked to provide a test vector for OATH HOTP. We suggest using the one from RFC 4226

3132333435363738393031323334353637383930

8-digit HOTPs from moving factor 0 shall then be

84755224
94287082
37359152
26969429


Regards,

JakobE
Hardware- and firmware guy @ Yubico


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